Centripetal compressor



Oct. 4, 1927-,`

' 1,644,565 P. L. cRowE CENTRIPETAL COMPRESSOR Fild July 25, 1825 5Shets-Sheet 1 \\\\L l l n In i s ummm... willi HW @l i *BWL .bcnow oct.4, 1927.

P. L. CROWE CENTRIPETAL COMPRESSOR Filed July 25. 1925 3 Sheets-Sheet 2:vili: .lilldn Syvum/Hoz @yl CR 0 W45 n 4 I 1 I o l. Oct 927 P. L. cRowECENTRIETAL COMPRESSOR 3 Sheets-Sheet 3' Fiied July 25. 1925 `v25vtlie'oitlet of saidE asin vtorthe- Patented Get. 4,1927;

naires stares .A

l fi-II'AUL L. CROWE, or BALTii/IDB; MARYLAND..

1 GENTRIPTAL @eM-mageos;

Application filed July 25,' 1925.1: Serial' N'OQAGZO;

` .This invention vrelates centripetal com-i pressors and has as anobject the 'provision oiiro'tors equipped witlivanes so as to perm-itacollection of air into the rotors and 51" means for distributing thevair collected 4loy therotors 'Y further object of thisin-Ventioii is theprovision of an air collector andi compressor,y including rotorsequipped with Vanes- 10` mounted on aliollow shaft for they purpose f ofcollecting airfcompressing the same and discharging it through thelhollow` shaft.

A still further object of the'invention is tozprovidel rotors havingimpellers land i Vancei 15' 'formed-integral therewithA for the Vpurposeofcollectingaand compressing air and: 'foro ing Athe *same into a hollowshaft, uponY which said rotors are mounted. Y

:Another object of the invention is the 20"pi'ovisior'r,ofy ahol'lovvshaft having mounted thereon andi in communication therewith, r

i airV collecting: rotors 'for' tliepurpose ofi collecting andcompressing the air into; said' Yshaftaiid means insaid-shaftto permitof purpose of l operating Vother-Ii1acliin"es-.`

, tli'evifprovision Qta centri-petal compressor enfiloodyingrotorspmounted on' a hollow shaft ing` vaifiesfy and a" means in* the;shaft for con trolling@ the' discharge lof the Vair therefrom.- further'objecftofthetinventionf isi'the provision ijo'gf -a'centripetalYconfipressor par-v 'i ticularly adapted for' the collection-lofllfuids,

I v andi-*durable ormof {impellers Y. Another.V and* importantobjectv'ot this giner having mbuntedthereon rotatable there-` with?Vair, lcollecting 'rotors including. means for compressing theair, aftercollected inthe rotorsfforcing the same-finto", the shaft?, and a Vmeanslongitudinally' of the shaft l'for the" controlling oftlie'dischargefoi'the garl fromthe shaft.V i n Vinvention consi'stsin'-y certain novelAfeatures,y

in'afterv 'more -u-llfy described; illustrated; intheaccompanying*'drawings;. and iclaimed;l In the vdizirwiiigsv--- 'listat; elevational illustres vofthe Vrotors, illustrating the vanesirido'ty v 1' f 603';

taken on tlie line (Sv-6101:' Figurejl;y Figure? is aslightlymodifiedformof' .a fragmentaryportion of'one'off the rotors;

tional view of one of the rotor-wheels;illusf rotors,thisform-slioWing-:a liiiultistag corr-g()v delivering-the samefat yahigherjpressureUstruction, f 'FL comparativeto speed, si-Ze,multiplicity-or, multi-plication, with ,a comparatively simple s brokenaway VtoV illustrate the f'reversefcu'rvac Y, l @ture of itsvanes. f i vj With-ftliese fand other objects in view, the soy combinatioi'iandfrrangement ot-parts herfe- Ref rr-ing 'tothe drawingspthe numefaing.y my improved centripetali compresser,v -K

as madeinaccordance with-this*invention;iy

- 1F igure 2 is apsideelevational view of one tedflines," n 4Figure 3 isa fragmentary,I longitudinale; 4

trating the air controlling' mean-s,

sectional view oi. the shaft and-rotors, illus--k Figure 4 is a si lelevationalfvifew or lone ofthe rotors,f l Y Figure 5 isaftraiisversesectional View `taken on tlie line 5-'5 of Figure', 5

FigureV 6 is a transverser sectional -t'iefw` illustrating the aircollectors,x A

Figure 8 is a modified-form oftheirotors'iv showing the air 'collectorsVstruck from the sides ofthe rotor casing,A ,i

lT'gureY 9v yis a fragmentary, longitudinal-f sectional view ot alhearingmsleeiffe meiiiloenY embracing the-lioll'ojwshaft, fortliefpurpdsei-, i

ot' conveying' the compressed? romftlie-rv lio'll'owshafttootheifiiiachiiies;L'1* f .fff f Figure 10 is afrafgmentary,side"elevae'fl;4

trating tlievlater .air collector',v

.equipped-withaiiaejastabieg Fig-ure l1`r is a top. :plan: partly fini-F-igure 13 i isA a 'verticah sectional :.vfievif,1

construction vwith the-outer wa-l-lf-brolrenf c t While 1 the lower*half* has i the inner wall@ viewsv oit Vthe v drawiifigs.

5 indicates hollow *sl'iaf-t @havingiisecured n section;illustra-tiiigtliefconstruction'showi'iiLilie.numeralsoreferenceszidesignatefcor,. -jf *responding partsvthroughout; thensever lf-floff V r-.

l secured tothe shaftfin any manner suitable for thepurposeandeach arehollon7 in direct;` communication Withthe interior of the spedg :air'collecting' and compressing vanes 18,1and-thesevanes ,converge from 'theouter periphery tothe. kcentral axis 9 of the rotors i rWherethey'areended.V

= "understood -thatt Vre :rotorsl andfcan` be f selectively orlcollectively, as desired, the "partioulargform "beingdecided uponV bythe User-*lip Y 5 the manner] Vin :which the periphery.` f of shaped;hood in cross;l section-11, andzjthis naukri cari 1B; whichgis fa'stnedtherewiby milling femm w1 necnracgfinf operation oef-,the rotors. I 'Therefiillustrted? yin thedrwing, vthat yx openings @as desired maybeprovid-V i provided alfdamper Q1-7 and` valve 'vided lron theirYinteriors 1 with relatively i 5; 'Ihejf.rotor y6' isy illustrated lashavingvlritsh f ripheiy f ullyopen as Vat 10,'v'vhile' therotor* i4.hesite peripher V:closed as 'at 11,:it being i Whenfthe 'rotorj7sisfconstructed, its side il wallsl'are 'provided' adjacent itsperiphery jwithilajpluralitydof relatively space drein-t. fleu!.nfeienti-all` `-1arxfanged fair collectors or rbu'cketsslO,` thisbeing more clearly illustrated',

he modifiedl img'in' eqll'ippedfvvithftheusual vanesS, andi illuseansf114,-I such as :bolts or` @The lSi evfv'al1 s 1ofthe rotor 'casing .Y

-. which air'is'collected prior to itsfoutl'et throughtheopening27oftheshat26. This `shaft 2( "p ermitsv air to b eiconveyed 'in anydirectiontherefrom and the openinglf -isf` controlled byvthe:valveplfthrough the med' um 'of'the'damper rod 19.x =Its to be undestood that any preferred Vmethodofmount-j 'f fr' 115.'.Y

to' j clearly l 'understood Vthat any 'theeon'structions 'shovvncanlfbe'used 'ahw-demingrfwm-the efficiency; and* i 11gCODStTItlOhSfSuCh'@Shaft26,10 Shaft 5,'-may beadopted;l andlfit 'is not' the inten`-- 'tion of:describingy this one .form 'tov eliminate other desirableones, It isalsovto be-nnder-ff stood -that shaft57may. be equipped with as many rotorsas desired, the' only requirement;

necessary.beingthatthe rotorsfa're'in direct f., l lcommunicat-ionwiththe]A interior-"lof ther] 'Y ,Thege'inpemngsz thee air 'gathered xehu'ftnnder*compression through-thev edium-of therotersiiandTand-theirvenes-shaft5;, Y i Y liteferring'to'the"modification,lillustrated' Figures 10jandfi11, there is illustrated the u y casing ofthe frotor y7,'aand instead-'of;strik--fingfthelairicolleetors.1.0directly-froin the@ i casingy or hood,aslillustrated in'Figures'4, 7;*`

ycentrally to the outer face of the rotor 6, and secured tothe outerterminal'ot this rod 19 is i The inner end of A the rod,isscrewthrea'dedas at'22, and has ,i Y

an l operating handle 21.

i formed on 'itszextreme linner terminal a stop 23, and Vthe "threaded'portion of this rod l receives andsupports the `valve 18, and by closedby longitudinal lmovement of the on rod 19.

The'darnper 17 is journaledf on `.t'11u 1ni ons'- 24 atdiametricallyoppositepoints the]VV i shaft 5, and. therod eXtendsthroughthis damperl? slightly off center, and thisl rodw is'provided withspaced controlling pins -25 arranged in closevproximity;to.reachiface1ot` the damper'- '17, whereupon movement, i ieither. inward or'0utvvard,f0ff the rod 19, the

turning this'rodin clock or counterolockwise L position the opening 16will beopened or`VV 75 Q valve 18, through the mediumof the threads i Ydamper will be opened orelosed relative to air gathered into` the shaftr.by the vrotor -7 the sha-ft 5. V'When vthe damperis closed the damperis opened in full 'i'position asillustratedfin Figure 3, air more orless throttled can passout through opening 15.

The endvvise movement of" herodfatfects; vthe-opening or'closing of the-side outlets of theshaft according tothe-'position of thel,

sleeve adjustment on the rodgto andv from the darnperfV I pressed aifr,fflovving from the vshaftk 5, have To `provide av means -fo'rusingntheilcome illustrated in Figure-9,a methodof connect`V lling the.shaft 5 in series Withfother maehin- 1; jv ery through the medium ofahollovv''shaftV u Y e v26, or other body.v L This shaft V26 embracestheshafti, and theshaft 5 isV providedwith vf ahollojwor',cut-out.portion in-its periph-5 Y ery,so as toQform 'an air chamber27 in higher' pressure or compression. Y

29, to the casing of the'rotor 7. The fas-V tening 29 is hereillustrated as a bolt and nut, but it is to be understood that anypreferred fastening means may be used. The attached end of the collector28 is 'curved as at 30, and provided with a longitudinally extendingslot 31, and throughthe niedlum y of this slot this air collector can beregulated y V32 with fixed central partitions 33.-V The in'A itsdistance relative to the opposed side face vof the casing 7. o

Referring to the modificationillustrated in Figure 12, I have provided aVrotor casing central partitions v33rdivide the casing into outerchambersV 34, and inner chambers 35, respectively.V The vanes 8 intheouter chambers 34 are curved inone direction, las illus- Y Y' trated inthe upper half of Figure 14, while the vanes 8 are curved inthe'opposite dichamber 36, into shaft 5,'the passage yofair beingclearly illustratedv by, the `arrows yin e this ligure. The centralpartition 33 is proc` v y l videdon the interior of itslwebbed portion,with an air deflecting means 37, and this construction is used where airis needed under Referring to the 'modification illustrated infFigure 13,I haveillustrated a rotor with a multicasing of air collecting chambers38, each equipped withvanes 39. The useof p this construction is'to showthat a single vro- `tor can be constructed into series, by simplyAV Yadding more air vcollecting compartments i with their respective vanes.

the rotors, over which passes 'a drive belt 41.`

The shaft 5 and rotors may driven byl a suitable drive wheel 40, carriedby one .of

It is to be understood, however,'that this'is y only oneV form'ofdriving mechanism, that any particular power, such as electric, steam',

or otherwise, ma rotors and shaft.`

as illustrated, vwithout departingl fromv the spirit and scope of theinvention. as claimed.` p.

Having thus described my invention, what l 'claim as new is:

l. A centripetal compressor comprising a 55 hollow shaft, rotors mountedon said shaft,

air collectors carried by said rotors, air compressors formed in saidrotors, means Yfor controlling the discharge of air delivered meanscarried by one of said cated 1nsaid shaft.

v2. A eentripetal-compressor comprisinga I. hollow rotatable shafthaving rotorsf mounted thereon and incommunication therewith,

means for rotating said shaftand rotors, air

outlets formed in said shaft,k vair collectors! and compressors carriedl"by saidrotors, and l manually operated meansffor controlling the letsformed therein;

flow of air from. the shaft through the'out" l In testimony whereof helliereuntofaflixes his signature.

y' .be adapted for driving the f Itis to be 'understood that minorchangeskk 'l may bemadefto the various constructions,j

`from said rotors into saidV shaft, and said l rotors land lol' PAULnonownf; i

